Grain door for cars



Mm 5, 1929. F. M. BAILEY 1,704,420

GRAIN DOOR FOR CARS Filed Dec. 1926 .3 Sheets-Sheet l Ill/ ji'l'ed J27. B01769 March 5, 1929.

F. M. BAILEY GRAIN DOOR FOR CARS Filed Dec. 1926 3 Sheets-Sheet 3 March 5, 1929. BMLEY 1,704,420

anus noon FOR cans Filed Dec. 6, 1926 :s Sheets-Sheet 3 wi l Patented Mar. 5, 1929.

UNITED STATES FRIED M. BAILEY, OF MINNEAPOLIS, MINNESOTA.

GRAIN DOOR FOB CARS.

Application filed December 6, 1926. Serial No. 153,032.

My invention has for its object to provide a simple and highly eflicient grain door for cars, and to this end it consists of the novel devices and combinations of devices hereinaiter described and delined in the claims.

In the accompanying drawings which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. l is av fragmentary view in outside elevation of a *ar body at its door openin and having the invention embodied therein;

Fig. is a transverse vertical section taken on the line 22 of 1;

F 3 is an inside elevation of the parts shown in Fig. 1 with the clamping plates released to permit the door to be opened;

Fig. 4: is a fragmentary outside perspecti V0 with some parts sectioned and showing w the car body and door at one of the door posts;

Fig. 5 is a fragmentary inside perspective view of the car body and door at the door posts, as shown in F 1;

Fig. 6 is a detail view in sect-ion taken on the line ti -6 of Fig. 4;

Fig. 7 is a fragmentary detail view partly in plan and partly in section taken on the line 7"? of F ig. =1; and

Fig. 8 is a fragmentary perspective view of the parts shown in Fig. 5 with the re spective clamping plate and stop plate released, and the lower door sect-ion partly open.

The numeral 9 indicates a car body hav ing the customary side door opening 10 and door posts 11 at the sides thereof.

The improved door comprises upper and lower sections and 13, respectively, the latter of which relatively low. Said up per door section 12 has secured at its v rtical edges, at the upper corners thereof, headed hinge studs 14 mounted in vertical slots 15 formed in angle hinge brackets 16 secured to the inner face of the car body 9 near the top of the door openings 10. hen the upper door section 12 is closed its hinge studs 14 rest on the hinge brackets 16 at the lower ends of the slots 15 with freedom for vertical lifting movement until the upper edge portion of said door section is substantially at the top of the door opening 10. The slots 15, at their upper ends, terminate in inwardly oil set notch-like seats 17 for the hinge studs 14: when the upper door section 12 is raised. The formation of the slots 15 at their junction with the seats 17 s such as to cam the hinge studs 14: laterally inward over said seats during the lifting movement of the door section 12'so that by a slight downward movement of said door section, before releasing the same, will carry the hinge studs into said seats.

When the hinge studs 14 are mounted in the seats 17 the upper door section 12 is supported thercliiy for inward swinging movementto a position in which said door section may be secured in a fully open position under the roof of the car body by any suitable means, not shown. The upper door section 12 is of such width that when closed it overlaps and bears on the inner face of the war body 9 at the door posts 11 and is held thereby against outward swingmg movement.

The lower door section 13 is supported from the upper door section 12 by a pair of upright hinge-acting links 18, the upper end portions of which are mounted in vertical slots 19 in the outer face of the upper door section 12 and pivoted thereto forswinging movement transversely of the door. The lower end portions of the hinge-acting links 18 overlap the vertical edge portions of the lower door section 13 and are pivoted thereto. Said lower door section 13 is of such width as to freely swing toward the door posts 11. The door sections 12 and 13-} have overlapping en agement between their horizontal edges ant said engagement permits outward swinging movement of the lower door section 13 but prevents inward swinging movement thereof. The hinge links 18 connect the lower door section 13 to the up door section 12 for compound lateral ;-:-:wiir Eng movement and vertical edgewise lifting movement. These hinge links 18 also poi-nut the lower do r section 13 to'be swung laterally outward and upward into a position in the field of the upper door section 12, with their outer faces turned toward each other. l

The door sections 12 and 13, at their adjacent horizontal edges, have beveled engagement to form a. grain-tight joint and this beveled engagement is such as to afford stop surfaces which prevent lateral inward movement of the door section 13 in respect to the upper door section 12.

A pivoted hook 20 on the upper face of the upper door section 12 is arranged to engage a detent 21 in the back of the lower it so door section 13 at the lower horizontal edge thereof and holds said lower door section folded onto said upper section, shown by dotted lines in Fig. 2. Relatively thick stop blocks 22 on the floor of the body 9 at the door posts 11, are arranged to prerentundue edgewi e shitting n'iovenieft ot the lower door section 13, and relatively thin stop blocks 23 on said "loor, inward oi the stop blocks 22, are arrans c. to be can gagged by the lower door section to prevent inward swinging movement thereof.

The upper door section 12 is held closed and pressed against the inter face of the car body 9 at the door posts 11, and ti er door section is held again: i I

' movement by upright flat clamping pistes 24. These clamping pl s 2% are attached to joint plates 25 for horizontal swinging movement by hinges 6, and saii'l jointplates are attached to the inner far. of the car body 9 at the door posts 11 by hinges 27 for like movements. The clainping plates 24 and jointpletcs extend subs. antially the full height of the door opening 10 and their hinges 26 and 27 are continuous and extend the iiull height ct said plates. The joint plates 25 cover the vertical edges of the door sections 12 end 113 and the clamping' plates 2% extend at right angles to the "joint plates 25 and overlap he vertical edge portions of said door sections. The hinges 26 and 27 connect the clampingplate 24 and joint plate 25 torreleasing movements in which they extend in the same plane and parallel to the inner face of the car bony 9. Lock bolts 2" in the free vertical edge portions of the clamping plates 2%, at the lower ends thereof are arranged to be projected into open notches 2% in the outer faces of the stop blocks and hold the clamping plates 2% and hence the joint plates 25 in operative positions. Latches 30, pivoted to the inner faces the door posts 11, are arranged to one the upper end portions of the clamping; plate 2%, which extend above the upper don: section 12, and co-operate with loch boll-:5 28 to hold said clamping plates 24 operati'. e. To prevent outward swinging movement or the lower door section 13, stop plates 31 are hinged at 32 to the opposing faces of the door posts 11 for horizontal swinging movement in which they overlap the vert-ical edge portions of said lower door section. Recesses 33 are formed in the opposing fac of the posts 11 to receive the stop plates 31 when operated to release the lower door section 13 for outward swinging movement. hen the stop plates 31 are turned into the recesses 33 they are entirely out of the way and do not in any way obstruct the door opening 10.

To sving the door stop plates 31 to and from operative positions and hold the same pressed.

plates 31 by the lower door section 1?, there secured to the shafts end compmrntiup pawls the (or wheel: 3''? V are pivoted to body 9 the sill of the door open lflirnied with the cl-nnynnn plates 9 W11 1 I 1 o h 11L. 1 \)\(iilb r u. uppc.

and prevent lif inn movement of the sections 12 and 13 under the jarrin action of the car body 9.

The opera 'on of the improved grain door may be brietlv described follows:

it may be assumed the tie door clos l L l he pun tween said door and the car body 9 -1 I t and held closed by the clamping; plntes 2+1 htly 0 seed by the oint plate; and the owing plates 2% that the door is sealed against lealrag'e oi grain from the car body 9. ll hen the outer door of the car body. not shown, is closed and sealed the gaf'h: which are inside of said door can not be tempered with.

To unload the car body when loaded with grain, the operator releases one of the pawls 38, and it the pressure of the groin on the door section 13 is not suilicicnt to open the relm sed stop plate 81 the operator opens the same lay turning the res-:pectiw shaft 35 by means oi: a wrench or other moi. W hen one of the stop plates 31 opened. the pressure of gratin on the respective end por tion 01 the door section 31 will more said. door section outward and the hinge links 18 will permit said so tion to also niove upward and assume an angular position both horizontally and vertically to the door section 12 and thus permit the escape or grain through the door section 13. The operator then releases the other stop plate 31 and allows the door section 13 to be swung open by the pressure of grain thereon.

After the initial flow oi grain from the car body 9 through the open door section 13 said section may be turned upward against the outer face of the door section 12 and secured by the latch 20. This initial flow of grain will relieve the pressure from the upper door section 12 and permit the same to be opened inward and secured by any suitable means to the root of the lllii car body with the lower door section 13 folded thereon.

To open the door section 12, the operator lifts the lock bolts 28 and latches 30 to release the clamping plates 24 which are then folded with the jointplates 25 into inoperative positions against the respective side of the car body 9. Said door section 12 may then be opened as previously,dsscribed. When the clamping plates 2i and joint plates 25 are folded inoperative against the inside of the car body .9 and the clamping plates 31 moved into the recess and the door sections 12 and 13 opened, the door opening 10 is completely open to its full width without any obstruction whatsoever. After the door-sections 12 and 13 have been opened the balance of the load in the car body 9 may be discharged by tipping the car or any other well known unloading method.

hat I claim is:

1. The combination with a car body having a door opening of a displaceable door for said opening mounted for vertical swinging movement to and from a closed position, substi'intially flat joint plates hinged to the car body and extending perpendicular to the respective side thereof at the vertical edges of the door, substantially flat clamping plates hinged to the free edges of the joint plates and extending substantially at right angles from the joint plates and overlapping the inner face of the door at the vertical edge portions thereof and engaging said door to form tight joints between the car body and door, said joint plates and clamping plates extending substantially the full height of the door, and fastening means for securing the clamping plates in operative positioi s to the car body.

2. The combination with a car body having a door opening, of a displaceable door for said opening mounted for vertical swinging movement to and from a closed position, substantially flat joint plates hinged to the car body and extending perpendicular to the respective side thereof at the vertical edges of the door, substantially fiat clamping plates hinged to the free edges of the joint plates and extending substantially at right angles from the joint plates and overlapping the inner face of the door at the vertical edge portions thereof and engaging said door to form tight joints between the car body and door, lock bolts securing the lower end portions of the clamping plates to the car body, and latches extending over the upper edge of the door and securing the upper ends of the clamp ing plates to the car body.

The structure defined in claim 2 in which the door is also mounted for bodily lifting movement and in further combination with stop devices on the clamping plates which project over the upper edge of the door and hold the same against lifting mo re n1 ent.

i. The combination with a car body having a door opening, of a displaceable door for said opening mounted for bodily lifting vertical swinging movements, clamping plates hinged in respect to the car body at the vertical edges of the door for horizontal swinging movement to and from operative positions in which they overlap the inner face of the door at the vertical edge portions thereof, and stop devices on the clamping plates arranged when the clamping plates are in operative positions to prevent lifting movement of the door.

In testimony whereof, I ailix my signature.

FRED M. BAILEY. 

